add fiat balances dashboard

app/controllers/admin/fiat_balances_controller.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+module Admin
+  class FiatBalancesController < Admin::ApplicationController
+    def valid_action?(name, resource = resource_class)
+      ["destroy"].exclude?(name.to_s) && super
+    end
+  end
+end

app/dashboards/fiat_balance_dashboard.rb

@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+require "administrate/base_dashboard"
+
+class FiatBalanceDashboard < Administrate::BaseDashboard
+  # ATTRIBUTE_TYPES
+  # a hash that describes the type of each of the model's fields.
+  #
+  # Each different type represents an Administrate::Field object,
+  # which determines how the attribute is displayed
+  # on pages throughout the dashboard.
+  ATTRIBUTE_TYPES = {
+    id: Field::Number,
+    user: Field::BelongsTo,
+    amount_formatted: Field::String,
+    created_at: Field::DateTime,
+    updated_at: Field::DateTime,
+  }.freeze
+
+  # COLLECTION_ATTRIBUTES
+  # an array of attributes that will be displayed on the model's index page.
+  #
+  # By default, it's limited to four items to reduce clutter on index pages.
+  # Feel free to add, remove, or rearrange items.
+  COLLECTION_ATTRIBUTES = [:id, :user, :amount_formatted].freeze
+
+  # SHOW_PAGE_ATTRIBUTES
+  # an array of attributes that will be displayed on the model's show page.
+  SHOW_PAGE_ATTRIBUTES = [:user, :id, :amount_formatted, :created_at, :updated_at].freeze
+
+  # FORM_ATTRIBUTES
+  # an array of attributes that will be displayed
+  # on the model's form (`new` and `edit`) pages.
+  FORM_ATTRIBUTES = [:user, :amount_formatted].freeze
+
+  # COLLECTION_FILTERS
+  # a hash that defines filters that can be used while searching via the search
+  # field of the dashboard.
+  #
+  # For example to add an option to search for open resources by typing "open:"
+  # in the search field:
+  #
+  #   COLLECTION_FILTERS = {
+  #     open: ->(resources) { resources.where(open: true) }
+  #   }.freeze
+  COLLECTION_FILTERS = {}.freeze
+
+  # Overwrite this method to customize how fiat balances are displayed
+  # across all pages of the admin dashboard.
+  #
+  # def display_resource(fiat_balance)
+  #   "FiatBalance ##{fiat_balance.id}"
+  # end
+end

app/models/fiat_balance.rb

@@ -24,5 +24,7 @@ class FiatBalance < ApplicationRecord
 
   monetize :amount_cents
 
-  validates :amount, presence: true
+  def amount_formatted
+    amount.format
+  end
 end

config/locales/activerecord.yml

@@ -4,17 +4,34 @@ pt-BR:
       user_document:
         one: Documentos de Usuário
         other: Documentos de Usuários
+
       admin_user:
         one: Administrador
         other: Administradores
+
       currency:
         one: Moeda
         other: Moedas
+
       balance:
         one: Saldo
         other: Saldos
+
+      fiat_balance:
+        one: Saldo Fiat
+        other: Saldos Fiat
+
     attributes:
       user:
         first_name: Primeiro nome
         last_name: Último nome
         full_name: Nome completo
+
+      balance:
+        amount: Quantia
+
+      fiat_balance:
+        amount_formatted: Quantia
+
+      currency:
+        name: Nome

config/routes.rb

@@ -6,6 +6,7 @@ Rails.application.routes.draw do
   namespace :admin do
     resources :users
     resources :balances
+    resources :fiat_balances
     resources :currencies
     resources :admin_users
 

spec/models/fiat_balance_spec.rb

@@ -22,5 +22,7 @@
 require "rails_helper"
 
 RSpec.describe(FiatBalance, type: :model) do
-  pending "add some examples to (or delete) #{__FILE__}"
+  describe "associations" do
+    it { is_expected.to(belong_to(:user)) }
+  end
 end